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data sheet. types m0872lc140 to M0872LC210 issue 1 page 1 of 11 march, 2004 westcode an ixys company date:- 10 mar, 2004 data sheet issue:- 1 soft recovery diode type m0872lc140 to M0872LC210 (old type no.: sm14-21cxc224) absolute maximum ratings voltage ratings maximum limits units v rrm repetitive peak reverse voltage, (note 1) 1400-2100 v v rsm non-repetitive peak reverse voltage, (note 1) 1400-2200 v other ratings maximum limits units i f(av)m maximum average forward current, t sink =55c, (note 2) 872 a i f(av)m maximum average forward current. t sink =85c, (note 2) 577 a i f(av)m maximum average forward. t sink =85c, (note 3) 332 a i f(rms) nominal rms forward current, t sink =25c, (note 2) 1757 a i f(d.c.) d.c. forward current, t sink =25c, (note 4) 1439 a i fsm peak non-repetitive surge t p =10ms, v rm =60%v rrm , (note 5) 10 ka i fsm2 peak non-repetitive surge t p =10ms, v rm 10v, (note 5) 11 ka i 2 ti 2 t capacity for fusing t p =10ms, v rm =60%v rrm , (note 5) 50010 3 a 2 s i 2 t i 2 t capacity for fusing t p =10ms, v rm 10v, (note 5) 60510 3 a 2 s t j op operating temperature range -40 to +125 c t stg storage temperature range -40 to +150 c notes:- 1) de-rating factor of 0.13% per c is applicable for t j below 25c. 2) double side cooled, single phase; 50hz, 180 half-sinewave. 3) single side cooled, single phase; 50hz, 180 half-sinewave. 4) double side cooled. 5) half-sinewave, 125c t j initial.
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 2 of 11 march, 2004 characteristics parameter min. typ. max. test conditions (note 1) units --1.5i fm =1200a v fm maximum peak forward voltage --1.7i fm =1750a v v t0 threshold voltage - - 1.09 v r t slope resistance - - 0.34 m ? - - 30 di/dt = 1000a/s, t j =25c v frm maximum forward recovery voltage - - 40 di/dt = 1000a/s v i rrm peak reverse current - - 50 rated v rrm ma q rr recovered charge - 700 - c q ra recovered charge, 50% chord - 280 320 c i rm reverse recovery current - 140 - a t rr reverse recovery time, 50% chord - 4.0 - i fm =1000a, t p =1000s, di/dt=60a/s, v r =50v, 50% chord. s - - 0.044 double side cooled r thjk thermal resistance, junction to heatsink - - 0.088 single side cooled k/w f mounting force 10 - 20 kn w t weight - 340 - g notes:- 1) unless otherwise indicated t j =125c.
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 3 of 11 march, 2004 notes on ratings and characteristics 1.0 voltage grade table voltage grade v rrm (v) v rsm (v) v r dc (v) 14 1400 1500 930 16 1600 1700 1040 18 1800 1900 1150 20 2000 2100 1250 21 2100 2200 1300 2.0 de-rating factor a blocking voltage de-rating factor of 0.13% per c is applicable to this device for t j below 25c. 3.0 abcd constants these constants (applicable only over current range of v f characteristic in figure 1) are the coefficients of the expression for the forward characteristic given below: f f f f i d i c i b a v ? + ? + ? + = ) ln( where i f = instantaneous forward current. 4.0 reverse recovery ratings (i) q ra is based on 50% i rm chord as shown in fig.(a) below. (ii) q rr is based on a 150 s integration time. i.e. = s rr rr dt i q 150 0 . (iii) 2 1 t t factor k =
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 4 of 11 march, 2004 5.0 reverse recovery loss the following procedure is recommended for use where it is necessary to include reverse recovery loss. from waveforms of recovery current obtained from a high frequency shunt (see note 1) and reverse voltage present during recovery, an instantaneous reverse recovery loss waveform must be constructed. let the area under this waveform be e joules per pulse. a new sink temperature can then be evaluated from: [] thjk max j sink r f k e t t ? + ? ? = ) ( where k = 0.2314 (c/w)/s e = area under reverse loss waveform per pulse in joules (w.s.) f = rated frequency in hz at the original sink temperature. r th ( jk ) = d.c. thermal resistance (c/w) the total dissipation is now given by: f e w w original tot ? + = ) ( ) ( note 1 - reverse recovery loss by measurement this device has a low reverse recovered charge and peak reverse recovery current. when measuring the charge, care must be taken to ensure that: (a) ac coupled devices such as current transformers are not affected by prior passage of high amplitude forward current. (b) a suitable, polarised, clipping circuit must be connected to the input of the measuring oscilloscope to avoid overloading the internal amplifiers by the relatively high amplitude forward current signal. (c) measurement of reverse recovery waveform should be carried out with an appropriate critically damped snubber, connected across diode anode to cathode. the formula used for the calculation of this snubber is shown below: dt di s r c v r ? ? = 4 2 where: v r = commutating source voltage c s = snubber capacitance r = snubber resistance 6.0 snubber components when selecting snubber components, care must be taken not to use excessively large values of snubber capacitor or excessively small values of snubber resistor. such excessive component values may lead to device damage due to the large resultant values of snubber discharge current. if required, please consult the factory for assistance.
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 5 of 11 march, 2004 7.0 computer modelling parameters 7.1 device dissipation calculations s av s o o av r ff w r ff v v i ? ? ? ? ? + + ? = 2 2 2 4 where v t0 = 1.09v, r t = 0.34m ? ff = form factor (normally unity for fast diode applications) k max j th av t t t r t w ? = ? ? = ) ( 7.2 calculation of v f using abcd coefficients the forward characteristic i f vs v f , on page 6 is represented in two ways; (i) the well established v t0 and r t tangent used for rating purposes and ( ( i i i i ) ) a set of constants a, b, c, and d forming the coefficients of the representative equation for v f in terms of i f given below: f f f f i d i c i b a v ? + ? + ? + = ) ln( the constants, derived by curve fitting software, are given in this report for both hot and cold characteristics. the resulting values for v f agree with the true device characteristic over a current range, which is limited to that plotted. 25c coefficients 125c coefficients a 1.162077 a 1.087889 b 5.89593810 -3 b 3.63773110 -3 c 3.1472910 -4 c 3.53783410 -4 d -9.38017610 -4 d 1.1033310 -3 8.0 frequency ratings the curves illustrated in figures 8 to 16 are for guidance only and are superseded by the maximum ratings shown on page 1. 9.0 square wave ratings these ratings are given for load component rate of rise of forward current of 100 and 500 a/s. 10.0 duty cycle lines the 100% duty cycle is represented on all the ratings by a straight line. other duties can be included as parallel to the first.
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 6 of 11 march, 2004 curves figure 1 ? forward characteristics of limit device figure 2 ? maximum forward recovery voltage 100 1000 10000 1 1.5 2 2.5 3 3.5 maximum instantaneous forward voltage - v fm (v) instantaneous forward current - i fm (a) 125c 25c 1 10 100 1000 10 100 1000 10000 rate of rise of forward current - di/dt (a/s) maximum forward recovery voltage - v frm (v) 125c 25c figure 3 - recovered charge, q rr figure 4 - recovered charge, q ra (50% chord) 100 1000 10000 1 10 100 1000 commutation rate - di/dt (a/s) total recovered charge - q rr (c) t j = 125c 2000a 1500a 1000a 500a 10 100 1000 1 10 100 1000 commutation rate - di/dt (a/s) recovered charge - q ra (c) 2000a 1500a 1000a 500a t j = 125c m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 7 of 11 march, 2004 figure 5 - maximum reverse current, i rm figure 6 - maximum recovery time, t rr (50% chord) 10 100 1000 1 10 100 1000 commutation rate - di/dt (a/s) reverse recovery current - i rm (a) 2000a 1500a 1000a 500a t j = 125c 1 10 100 1101001000 commutation rate - di/dt (a/s) recovery time - t rr (s) t j = 125c 2000a 1500a 1000a 500a figure 7 ? reverse recovery energy per pulse figure 8 - sine wave energy per pulse 100 1000 10 100 1000 commmutation rate - di/dt (a/s) energy per pulse - e r (mj) t j = 125c v r =67%v rrm 0.1f, 10 ? snubber 2000a 1000a 250a 500a 1.00e-02 1.00e-01 1.00e+00 1.00e+01 1.00e+02 1.00e+03 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) energy per pulse (j) t j = 125c 3000a 2000a 1500a 1000a 500a m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 8 of 11 march, 2004 figure 9 - sine wave frequency vs. pulse width figure 10 - sine wave frequency vs. pulse width 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 100% duty cycle 1000a 500a 2000a t k = 55c 1500a 3000a 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 1000a 3000a 1500a 100% duty cycle t k = 85c 2000a 500a figure 11 - square wave energy per pulse figure 12 - square wave energy per pulse 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 100% duty cycle 500a 1500a 2000a t k =55c di/dt =100a/s 3000a 1000a 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 100% duty cycle 500a 3000a 2000a di/dt =500a/s t k = 55c 1000a 1500a m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 9 of 11 march, 2004 figure 13 - square wave frequency vs. pulse width figure 14 - square wave frequency vs. pulse width 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 1000a 3000a 500a 1500a 2000a 100% duty cycle di/dt =100a/s t k = 85c 1.00e+01 1.00e+02 1.00e+03 1.00e+04 1.00e+05 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) frequency (hz) 500a 1500a 2000a 100% duty cycle di/dt =500a/s t k = 85c 1000a 3000a figure 15 - square wave frequency vs. pulse width figure 16 - square wave frequency vs. pulse width 1.00e-01 1.00e+00 1.00e+01 1.00e+02 1.00e+03 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) energy per pulse (j) 3000a 500a 1000a di/dt =100a/s t j = 125c 1500a 2000a 1.00e-01 1.00e+00 1.00e+01 1.00e+02 1.00e+03 1.00e-05 1.00e-04 1.00e-03 1.00e-02 pulse width (s) energy per pulse (j) 3000 a 2000 a 1500 a 1000 a 500 a di/dt =500a/s t j = 125c m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1 m0872lc140-210 issue 1
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 10 of 11 march, 2004 figure 17 ? maximum surge and i 2 t ratings 1000 10000 100000 total peak half sine surge current - i fsm (a) 1.00e+05 1.00e+06 1.00e+07 maximum i 2 t (a 2 s) 135101 510 50100 duration of surge (ms) duration of surge (cycles @ 50hz) i 2 t: v rrm 10v t j (initial) = 125c i fsm : v rrm 10v i fsm : v r =60% v rrm i 2 t: v r =60% v rrm figure 18 ? transient thermal impedance 0.0001 0.001 0.01 0.1 0.0001 0.001 0.01 0.1 1 10 100 time (s) thermal impedance (k/w) ssc 0.088k/w dsc 0.044k/w m0872lc140-210 issue 1 m0872lc140-210 issue 1
westcode westcode westcode westcode an ixys company soft recovery diode type m0872lc140 to M0872LC210 data sheet. types m0872lc140 to M0872LC210 issue 1 page 11 of 11 march, 2004 outline drawing & ordering information ordering information (please quote 10 digit code as below) m0872 lc 0 fixed type code fixed outline code voltage code v drm /100 14-21 fixed code order code: m0872lc160 ? 1600v v rrm , 27.0mm clamp height capsule. westcode ixys semiconductor gmbh edisonstra?e 15 d-68623 lampertheim tel: +49 6206 503-0 fax: +49 6206 503-627 e-mail: marcom@ixys.de an ixys company westcode semiconductors ltd langley park way, langley park, chippenham, wiltshire, sn15 1ge. tel: +44 (0)1249 444524 fax: +44 (0)1249 659448 e-mail: wsl.sales@westcode,com ixys corporation 3540 bassett street santa clara ca 95054 usa tel: +1 (408) 982 0700 fax: +1 (408) 496 0670 e-mail: sales@ixys.net www.westc ode.com www.ixys.com westcode semiconductors inc 3270 cherry avenue long beach ca 90807 usa tel: +1 (562) 595 6971 fax: +1 (562) 595 8182 e-mail: wsi.sales@westcode.com the information contained herein is confidential and is protected by copyright. the information may not be used or disclosed except with the written permission of and in the manner permitted by the proprietors westcode semiconductors ltd. in the interest of product improvement, westcode reserves the right to change specifications at any time without prior notice. devices with a suffix code (2-letter, 3-letter or letter/digit/letter combination) added to their generic code are not necessar ily subject to the conditions and limits contained in this report. ? westcode semiconductors ltd.

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